The results of the cross-domain evaluation are listed in Table REF .
From the results, we first find that the GaitSet models trained on the in-the-lab datasets, i.e., CASIA-B [1]} and OU-LP [2]} obtain very poor results, only 6.90% and 6.10% Rank-1.
This reflects that there is a huge domain gap between the in-the-lab research and the in-the-wild application.
